/**/
#include<stdio.h>
int main()
{

	int a=0,c=1;
	int b=0;
	for(a=1;a<11;a++)
	{

	   c=a*c;
	   b=b+c;

    
	}
    printf("1!+2!+3!=,,,+10!=%d\n",b);


return 0;
}